… the solid phase directly to the vapour phase, or vice versa, without passing through an intermediate liquid phase. 2. Sublimation is the process of a solid changing form a gas to a solid without going to the liquid state and vice versa. An example of…

… sustainable tourism with a primary focus on experiencing natural areas that fosters environmental and cultural understanding, appreciation and conservation. Ecotourism is an important factor in maintaining and keeping our natural heritages the way…

… than one would think. Based on the tidbits of information given about the Tagoman tribe's, of Australia, language one could deduce quite a few things. First, from their words for terrain and rain, I presume that they live inland, perhaps in…

… and hardware engineering and biotechnology to recreate life or intelligence raises ethical and social issues. There is an ethical responsibility on the part of the creator to ensure that the robot or virtual pet causes no harm. There is also the…

… your reactions: Rub your index fingers gently over a piece of very coarse sandpaper a few times and rate its coarseness on a scale from 1 (very soft) to 7 (very coarse). After a minute or two, rub the same finger over the paper and again rate…

… pristine environmental areas in our country, but it also is an area that contains the largest oil reserve in the entire US. This has led to a very intense and complicated debate as to whether we should preserve this area or allow oil extraction.…

… do what they do and why. However, this is no easy question to answer. But modern research and studies are beginning to get a handle on the complexity of organism behavior and their reasons for acting the way they do. A good approach to understand this…

… waves I think of a wave crashing on the shore at the beach, but that's not the type of wave I'm about to talk about. A wave is a traveling disturbance that carries energy from one place to another. There are so many types. For example there are mecha…

… that comes to mind is a person who puts out fires. That is only true in the early history of fire fighting which dates back all the way to 300B.C in the Roman Empire. It was not until 872 when the first fire regulations were created in England.…

… who forms', is the Greek god of dreams. It was believed by the Greeks that he shaped and formed dreams for mortals. Morpheus played an important role as a god; he was the leader of the Oneriroi tribe. The tribe was made up of himself and his three…